Formation mechanisms of small fragment ions in nanosecond laser induced fragmentation of C60 | Zendy

D B Qian | Zendy; Ma Xin-Wen | Zendy; Dacheng Zhang | Zendy; Zu Kailing | Zendy; Liu Huiping | Zendy; Wen Wei-Qiang | Zendy

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Formation mechanisms of small fragment ions in nanosecond laser induced fragmentation of C60

Author(s) -

D B Qian,

Ma Xin-Wen,

Dacheng Zhang,

Zu Kailing,

Liu Huiping,

Wen Wei-Qiang

Publication year - 2008

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.57.5810

Subject(s) - nanosecond , fluence , kinetic energy , ion , fragmentation (computing) , atomic physics , materials science , laser , excited state , breakup , range (aeronautics) , fullerene , optics , physics , computer science , mechanics , operating system , composite material , quantum mechanics

The time of flight mass spectrometric technique was used to determine the initial mean kinetic energy of small fragment ions C+n (n≤11) produced from C60 excited by 532nm nanosecond laser pulses. The measured kinetic energy shows little variation with the fragment mass and the laser fluence in a broad range. Based on the assumption that C+30 is produced predominantly by a single electron emission followed by successive C2 evaporation from hot C60 in the nanosecond laser fieldthe formation of small fragments is interpreted as the complete breakup of the unstable C+30 cage structure. The interpretation is consistent with the previously observed results.

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